US9771769B2 - Devices and related methods for actuating wellbore tools with a pressurized gas - Google Patents

Devices and related methods for actuating wellbore tools with a pressurized gas Download PDF

Info

Publication number
US9771769B2
US9771769B2 US14/698,478 US201514698478A US9771769B2 US 9771769 B2 US9771769 B2 US 9771769B2 US 201514698478 A US201514698478 A US 201514698478A US 9771769 B2 US9771769 B2 US 9771769B2
Authority
US
United States
Prior art keywords
pressure
cylinder
seal
section
well tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/698,478
Other languages
English (en)
Other versions
US20150308236A1 (en
Inventor
Kevin L. Baker
Timothy E. LaGrange
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Owen Oil Tools LP
Original Assignee
Owen Oil Tools LP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Owen Oil Tools LP filed Critical Owen Oil Tools LP
Priority to US14/698,478 priority Critical patent/US9771769B2/en
Publication of US20150308236A1 publication Critical patent/US20150308236A1/en
Assigned to OWEN OIL TOOLS LP reassignment OWEN OIL TOOLS LP ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BAKER, KEVIN L., LAGRANGE, TIMOTHY E.
Application granted granted Critical
Publication of US9771769B2 publication Critical patent/US9771769B2/en
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0412—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion characterised by pressure chambers, e.g. vacuum chambers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
    • E21B23/065—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers setting tool actuated by explosion or gas generating means

Definitions

  • FIG. 3 depicts an end view of a concave surface discontinuity for the FIG. 2 pressure dissipater
  • FIG. 4 schematically illustrates a well system that may deploy a gas energized well tool having a pressure dissipater in accordance with one embodiment of the present disclosure.
  • the upper sub 110 includes a housing 112 that has a first chamber 114 for receiving an igniter 118 .
  • the igniter 118 may be a pyrotechnic device that generates a flame output when detonated by a suitable signal (e.g., electrical signal, hydraulic pressure, impact, etc.).
  • the pressure sub 130 may be formed as a piston-cylinder assembly wherein a cylinder 134 slides relative to a shaft 138 fixed to the upper sub 110 .
  • the shaft 138 has a first end 140 that connects with the upper sub 110 , a bore 142 , and a piston assembly 144 .
  • a power charge 146 disposed in the bore 142 may be formed of an energetic material that undergoes a deflagration when ignited by the flame output of the igniter 118 .
  • the energy from a deflagration primarily generates a gas at sufficient pressure and with enough volume to actuate the separate well tool (not shown). Shock waves are minimal, if not nonexistent, in a deflagration.
  • the bore 142 is sealed with a device such as an adapter 143 in the upper sub 110 such that the generated gas can only flow away from the upper sub 110 .
  • the cylinder 134 includes a bore 136 in which the shaft 138 is disposed.
  • the bore 136 includes a smooth bore section 162 and the pressure dissipater 100 .
  • the smooth bore section 162 may be defined by an inner surface 164 that is dimensionally non-varying both circumferentially and axially. That is, the inner surface 164 conforms to a diameter that does not vary over a specified axial length.
  • the bore 136 includes a pressure chamber 153 that generates the pressure needed to displace the cylinder 134 in a direction away from the upper sub 110 .
  • the pressure chamber 153 may be formed using seals provided on the piston assembly 144 .
  • the piston assembly 144 may include a head 150 that is connected to a mandrel 152 .
  • the pressure chamber 153 may be defined by one or more seals 154 positioned on the head 150 and one or more seals 155 disposed in the cylinder 134 that are positioned around the mandrel 152 .
  • the seals 154 may be elastomeric o-rings or other similar type of seals. Gas enters the pressure chamber 153 via passages 156 formed on the mandrel 152 .
  • the pressure dissipater 100 dissipates fluid pressure in the pressure chamber 153 after the cylinder 134 has moved axially, or stroked, a predetermined distance.
  • the pressure dissipater 100 physically destabilizes the seals 154 after the seals 154 exit the smooth bore section 162 .
  • physically destabilized it is meant that the body of the seals 154 are torn, ruptured, sheared, cut, shredded, or otherwise damaged to an extent that the seals 154 cannot maintain a fluid tight sealing contact with an adjacent surface.
  • the pressure dissipater 100 which may be located at or near a terminal end 166 of the cylinder 134 , includes an enlarged diameter bore 167 along which a concave surface discontinuity 168 is formed.
  • the enlarged diameter section 167 has a diameter greater than the diameter of the smooth bore section 162 and extends to the end of the terminal end 166 .
  • the concave discontinuity 168 may be a recess such as a groove, slot, or channel formed on an inner surface 172 that defines the enlarged diameter section 167 .
  • the discontinuity 168 may be straight or curved.
  • the concave discontinuity 168 may be longitudinally aligned and have a length that may partially or completely traverse the enlarged diameter section 167 .
  • longitudinally aligned it is meant that discontinuity 168 is parallel with a longitudinal axis of the well tool 50 ( FIG. 4 ), which is generally aligned with a wellbore 25 ( FIG. 4 ).
  • the discontinuity may be protrusion that projects from the inner surface 172 . While one discontinuity 168 is shown, two or more discontinuities may be circumferentially spaced along the inner surface 172 . Also, the surface discontinuity 168 may have rounded corners as shown or have sharp edges. The length and depth of the surface discontinuity 168 are selected to deform and damage the seals 154 sufficiently to allow high-pressure gas, and other fluids such as oil if present, to leak across the seals 154 and thereby bleed pressure from the pressure chamber 153 .
  • the facility 20 can include known equipment and structures such as a platform 26 at the earth's surface 28 , a rig 30 , a wellhead 32 , and cased or uncased pipe/tubing 34 .
  • a work string 36 is suspended within the wellbore 25 from the platform 26 .
  • the work string 36 can include drill pipe, coiled tubing, wire line, slick line, or any other known conveyance means.
  • the work string 36 can include telemetry lines or other signal/power transmission mediums that establish one-way or two-way telemetric communication from the surface to the well tool 50 connected to an end of the work string 36 .
  • the well tool 50 is conveyed into the wellbore 25 using the work string 36 .
  • a suitable signal is transmitted to detonate the igniter 118 .
  • an electrical signal is conveyed via the cable 40 .
  • a pressure increase or drop bar may be used.
  • the igniter 118 generates a flame output that ignites the power charge 146 .
  • the power charge 146 undergoes a deflagration that generates a high-pressure gas.
  • the power charge 146 when ignited, generates a high pressure gas that flows from the shaft bore 142 via the passages 156 into the pressure chamber 153 . Because the seals 154 are intact, a relatively fluid tight seal prevents the high-pressure gas, and other gases or liquids, in the pressure chamber 153 from escaping.
  • the cylinder 134 When the fluid pressure in the pressure chamber 153 is sufficiently high, the cylinder 134 is axially displaced in the direction shown by arrows 197 and activates the separate well tool (not shown). Initially, the seals 154 slide along the inner surface 164 of the smooth bore section 162 and the seals 155 slide along the mandrel 152 . During the time the seals 154 are in the smooth bore section 162 , the seals 154 are in a nominal sealing diameter.
  • the seals 154 Toward the end of the cylinder stroke, the seals 154 exit the smooth bore section 162 and enter the enlarged diameter section 167 of the pressure dissipater 100 . Because of the larger bore diameter, the gas pressure in the chamber 153 can diametrically expand the seals 154 . Upon expanding diametrically from the nominal sealing diameter, portions of the seals 154 flow or extrude into the surface discontinuities 168 . As the seals 154 slide axially along the enlarged diameter section 167 , the concave discontinuities 168 physically destabilizes the seals 154 . That is, it is the physical contact between the seals 154 and the concave discontinuities 168 that causes the destabilization.
  • a gas is described as the primary pressure source for moving the piston
  • a liquid may also be used.
  • a hydraulic oil may be used in a pressure chamber.
  • the movement of the piston may be modulated by metering the flow of the hydraulic oil through an orifice.
  • the hydraulic oil as well as the high pressure gas cooperate to move the piston and both are bleed from the tool after the seal is ruptured.
  • the term “longitudinal” or “long” refers to a direction parallel with a bore of a tool or a wellbore.
  • the tool 100 has a longitudinal axis that is parallel with the longitudinal axis of the wellbore.

Landscapes

  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Actuator (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Earth Drilling (AREA)
  • Fluid-Damping Devices (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
US14/698,478 2014-04-28 2015-04-28 Devices and related methods for actuating wellbore tools with a pressurized gas Active 2036-03-17 US9771769B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/698,478 US9771769B2 (en) 2014-04-28 2015-04-28 Devices and related methods for actuating wellbore tools with a pressurized gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461985158P 2014-04-28 2014-04-28
US14/698,478 US9771769B2 (en) 2014-04-28 2015-04-28 Devices and related methods for actuating wellbore tools with a pressurized gas

Publications (2)

Publication Number Publication Date
US20150308236A1 US20150308236A1 (en) 2015-10-29
US9771769B2 true US9771769B2 (en) 2017-09-26

Family

ID=54334283

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/698,478 Active 2036-03-17 US9771769B2 (en) 2014-04-28 2015-04-28 Devices and related methods for actuating wellbore tools with a pressurized gas

Country Status (8)

Country Link
US (1) US9771769B2 (zh)
EP (1) EP3137724B1 (zh)
CN (1) CN106460478B (zh)
AU (2) AU2015253370B2 (zh)
CA (1) CA2947021C (zh)
EA (1) EA038025B1 (zh)
MX (1) MX2016014105A (zh)
WO (1) WO2015168142A1 (zh)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10689931B2 (en) 2018-10-10 2020-06-23 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US10927627B2 (en) 2019-05-14 2021-02-23 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US10934794B2 (en) 2019-02-06 2021-03-02 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug using a self damping setting tool
US10934795B2 (en) 2017-10-06 2021-03-02 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug
US10961796B2 (en) 2018-09-12 2021-03-30 The Wellboss Company, Llc Setting tool assembly
US11204224B2 (en) 2019-05-29 2021-12-21 DynaEnergetics Europe GmbH Reverse burn power charge for a wellbore tool
US11255147B2 (en) 2019-05-14 2022-02-22 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11578549B2 (en) 2019-05-14 2023-02-14 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool
US11761281B2 (en) 2019-10-01 2023-09-19 DynaEnergetics Europe GmbH Shaped power charge with integrated initiator
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111757970A (zh) * 2018-02-23 2020-10-09 狩猎巨人公司 坐封工具中的减震材料
WO2020013949A1 (en) 2018-07-13 2020-01-16 Kingdom Downhole Tools, Llc One run setting tool
US11280143B2 (en) * 2019-05-14 2022-03-22 Fortress Downhole Tools, L.L.C. Method and apparatus for setting downhole plugs and other objects in wellbores
US11905776B2 (en) * 2021-06-10 2024-02-20 G&H Diversified Manufacturing Lp Downhole setting tool with exhaust diffuser

Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002559A (en) * 1957-07-22 1961-10-03 Aerojet General Co Propellant set bridging plug
US3186485A (en) 1962-04-04 1965-06-01 Harrold D Owen Setting tool devices
US3746091A (en) 1971-07-26 1973-07-17 H Owen Conduit liner for wellbore
US4333595A (en) 1979-04-10 1982-06-08 Olin Corporation Offset piston for powder actuated tools
US4345646A (en) * 1978-02-13 1982-08-24 Gearhart Industries, Inc. Apparatus for chemical cutting
US5024270A (en) * 1989-09-26 1991-06-18 John Bostick Well sealing device
US5228507A (en) 1991-08-23 1993-07-20 Marcel Obrejanu Wireline hydraulic retrieving tool
US5396951A (en) 1992-10-16 1995-03-14 Baker Hughes Incorporated Non-explosive power charge ignition
EP0672817A1 (en) 1994-03-17 1995-09-20 Halliburton Company Gas impermeable static seal
EP1006259A2 (en) 1998-12-01 2000-06-07 Halliburton Energy Services, Inc. Downhole tool
US6435278B1 (en) 2000-08-09 2002-08-20 Halliburton Energy Services, Inc. Firing head/perforating gun latching system and associated methods
WO2002097234A1 (en) 2001-05-18 2002-12-05 Dril-Quip, Inc. Line hanger, running tool and method
US20080296021A1 (en) 2007-05-31 2008-12-04 Robertson Michael C Perforating Torch Apparatus and Method
US7469750B2 (en) 2004-09-20 2008-12-30 Owen Oil Tools Lp Expandable seal
WO2009058725A2 (en) 2007-10-31 2009-05-07 Baker Hughes Incorporated Downhole seal bore repair device
US7552766B2 (en) 1999-04-30 2009-06-30 Owen Oil Tools Lp Ribbed sealing element and method of use
US20120160483A1 (en) 2010-12-22 2012-06-28 Carisella James V Hybrid Dump Bailer and Method of Use
US8534367B2 (en) 2010-04-23 2013-09-17 James V. Carisella Wireline pressure setting tool and method of use
WO2014086962A2 (en) 2012-12-07 2014-06-12 Welltec A/S Downhole setting tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138207A (en) 1960-06-20 1964-06-23 Halliburton Co Pressure balanced actuating device
US3233674A (en) 1963-07-22 1966-02-08 Baker Oil Tools Inc Subsurface well apparatus
US7353866B2 (en) * 2005-04-25 2008-04-08 Marathon Oil Company Stimulation tool having a sealed ignition system
WO2012058544A1 (en) * 2010-10-29 2012-05-03 Shell Oil Company Collapsible casing device for use in controlling flow
GB201022127D0 (en) * 2010-12-31 2011-02-02 Element Six Production Pty Ltd A superhard structure and method of making same
MX2017005595A (es) * 2014-10-31 2017-10-25 Robertson Ip Llc Herramienta de ajuste para aplicaciones del fondo del pozo.

Patent Citations (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002559A (en) * 1957-07-22 1961-10-03 Aerojet General Co Propellant set bridging plug
US3186485A (en) 1962-04-04 1965-06-01 Harrold D Owen Setting tool devices
US3746091A (en) 1971-07-26 1973-07-17 H Owen Conduit liner for wellbore
US4345646A (en) * 1978-02-13 1982-08-24 Gearhart Industries, Inc. Apparatus for chemical cutting
US4333595A (en) 1979-04-10 1982-06-08 Olin Corporation Offset piston for powder actuated tools
US5024270A (en) * 1989-09-26 1991-06-18 John Bostick Well sealing device
US5228507A (en) 1991-08-23 1993-07-20 Marcel Obrejanu Wireline hydraulic retrieving tool
US5396951A (en) 1992-10-16 1995-03-14 Baker Hughes Incorporated Non-explosive power charge ignition
EP0672817A1 (en) 1994-03-17 1995-09-20 Halliburton Company Gas impermeable static seal
EP1006259A2 (en) 1998-12-01 2000-06-07 Halliburton Energy Services, Inc. Downhole tool
US7552766B2 (en) 1999-04-30 2009-06-30 Owen Oil Tools Lp Ribbed sealing element and method of use
US6435278B1 (en) 2000-08-09 2002-08-20 Halliburton Energy Services, Inc. Firing head/perforating gun latching system and associated methods
WO2002097234A1 (en) 2001-05-18 2002-12-05 Dril-Quip, Inc. Line hanger, running tool and method
US7469750B2 (en) 2004-09-20 2008-12-30 Owen Oil Tools Lp Expandable seal
US20080296021A1 (en) 2007-05-31 2008-12-04 Robertson Michael C Perforating Torch Apparatus and Method
WO2009058725A2 (en) 2007-10-31 2009-05-07 Baker Hughes Incorporated Downhole seal bore repair device
US8534367B2 (en) 2010-04-23 2013-09-17 James V. Carisella Wireline pressure setting tool and method of use
US20120160483A1 (en) 2010-12-22 2012-06-28 Carisella James V Hybrid Dump Bailer and Method of Use
WO2014086962A2 (en) 2012-12-07 2014-06-12 Welltec A/S Downhole setting tool

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PCT/US2015/028023-International Search Report dated Apr. 28, 2015.
PCT/US2015/028023—International Search Report dated Apr. 28, 2015.

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10934795B2 (en) 2017-10-06 2021-03-02 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug
US11808093B2 (en) 2018-07-17 2023-11-07 DynaEnergetics Europe GmbH Oriented perforating system
US10961796B2 (en) 2018-09-12 2021-03-30 The Wellboss Company, Llc Setting tool assembly
US11371305B2 (en) 2018-10-10 2022-06-28 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US10844678B2 (en) 2018-10-10 2020-11-24 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US11788367B2 (en) 2018-10-10 2023-10-17 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US10941625B2 (en) 2018-10-10 2021-03-09 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US11066886B2 (en) 2018-10-10 2021-07-20 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US10689931B2 (en) 2018-10-10 2020-06-23 Repeat Precision, Llc Setting tools and assemblies for setting a downhole isolation device such as a frac plug
US10934794B2 (en) 2019-02-06 2021-03-02 G&H Diversified Manufacturing Lp Systems and methods for setting a downhole plug using a self damping setting tool
US11255147B2 (en) 2019-05-14 2022-02-22 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11578549B2 (en) 2019-05-14 2023-02-14 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US10927627B2 (en) 2019-05-14 2021-02-23 DynaEnergetics Europe GmbH Single use setting tool for actuating a tool in a wellbore
US11204224B2 (en) 2019-05-29 2021-12-21 DynaEnergetics Europe GmbH Reverse burn power charge for a wellbore tool
US11761281B2 (en) 2019-10-01 2023-09-19 DynaEnergetics Europe GmbH Shaped power charge with integrated initiator
US11946728B2 (en) 2019-12-10 2024-04-02 DynaEnergetics Europe GmbH Initiator head with circuit board
US11753889B1 (en) 2022-07-13 2023-09-12 DynaEnergetics Europe GmbH Gas driven wireline release tool

Also Published As

Publication number Publication date
AU2015253370A1 (en) 2016-11-10
EP3137724B1 (en) 2020-03-04
EP3137724A4 (en) 2018-01-10
EP3137724A1 (en) 2017-03-08
CA2947021C (en) 2021-01-26
AU2015253370B2 (en) 2019-05-16
MX2016014105A (es) 2017-02-09
AU2019203013B2 (en) 2021-01-21
EA038025B1 (ru) 2021-06-24
WO2015168142A1 (en) 2015-11-05
CN106460478A (zh) 2017-02-22
CA2947021A1 (en) 2015-11-05
EA201692075A1 (ru) 2017-05-31
AU2019203013A1 (en) 2019-05-23
CN106460478B (zh) 2019-05-17
US20150308236A1 (en) 2015-10-29

Similar Documents

Publication Publication Date Title
AU2019203013B2 (en) Devices and related methods for actuating wellbore tools with a pressurized gas
US10119354B2 (en) Well emergency separation tool for use in separating a tubular element
US9890604B2 (en) Devices and related methods for actuating wellbore tools with a pressurized gas
US11066892B2 (en) Blowout preventer
US20210108475A1 (en) Impact Resistant Material in Setting Tool
CA2848060C (en) Devices and related methods for actuating wellbore tools with a pressurized gas
US9982500B2 (en) Well emergency separation tool for use in separating a tubular element
WO2021113758A1 (en) Impact resistant material in setting tool
US11448025B2 (en) Impact resistant material in setting tool
US9448051B2 (en) Detonator interrupter for well tools
EP3553273A1 (en) Downhole straddle system

Legal Events

Date Code Title Description
AS Assignment

Owner name: OWEN OIL TOOLS LP, TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BAKER, KEVIN L.;LAGRANGE, TIMOTHY E.;SIGNING DATES FROM 20150616 TO 20150706;REEL/FRAME:037014/0940

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4